Gary Sherman Davis

Works (16)

Updated: April 4th, 2024 19:42

2007 article

Direct-Fed Microbial PrimaLac and Salinomycin Modulate Whole-Body and Intestinal Oxygen Consumption and Intestinal Mucosal Cytokine Production in the Broiler Chick

Chichlowski, M., Croom, J., McBride, B. W., Daniel, L., Davis, G., & Koci, M. D. (2007, June 1). Poultry Science.

By: M. Chichlowski  n, J. Croom n, B. McBride *, L. Daniel n, G. Davis n & M. Koci n 

author keywords: broiler; direct-fed microbial; body energetics; cytokine
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Anti-Bacterial Agents / pharmacology; Chickens; Cytokines / metabolism; Diet / veterinary; Dietary Supplements; Gene Expression Regulation / drug effects; Intestinal Mucosa / drug effects; Intestinal Mucosa / metabolism; Intestines / drug effects; Lactobacillus; Oxygen Consumption / drug effects; Pyrans / pharmacology
topics (OpenAlex): Animal Nutrition and Physiology; Aquaculture disease management and microbiota; Antimicrobial Peptides and Activities
TL;DR: The reverse transcription-PCR data demonstrated that DFM consortium numerically altered both pro- and antiinflammatory cytokines within the ileum of 19-d posthatch broilers, suggesting that direct-fed microbials like PrimaLac increase metabolic efficiency via changes in intestinal physiology and metabolism. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 article

Effects of Genetic Selection on Behavioral Profiles of Single Comb White Leghorn Hens Through Two Production Cycles

Anderson, K. E., Jones, D. R., Davis, G. S., & Jenkins, P. K. (2007, September 1). Poultry Science, Vol. 86, pp. 1814–1820.

By: K. Anderson n , D. Jones n, G. Davis n & P. Jenkins n

author keywords: chicken; laying hen; molt; behavior; fearfulness
MeSH headings : Animal Husbandry / methods; Animals; Behavior, Animal / physiology; Chickens / genetics; Chickens / physiology; Female; Molting / physiology; Selection, Genetic
topics (OpenAlex): Animal Nutrition and Physiology; Animal Behavior and Welfare Studies; Livestock and Poultry Management
TL;DR: Four layer genetic stocks and a commercial laying stock were utilized to evaluate potential changes in behavioral profiles due to the effects of genetic selection through 2 production cycles, indicating that long-term genetic selection by commercial egg-type breeding firms to enhance production parameters has had no impact on laying strain behavior patterns. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 article

Effects of Bird Age, Density, and Molt on Behavioral Profiles of Two Commercial Layer Strains in Cages

Anderson, K. E., Davis, G. S., Jenkins, P. K., & Carroll, A. S. (2004, January 1). Poultry Science, Vol. 83, pp. 15–23.

By: K. Anderson n , G. Davis n, P. Jenkins n & A. Carroll n

author keywords: chicken; laying hen; molt; behavior; fearfulness
MeSH headings : Age Factors; Aging / physiology; Animal Husbandry / methods; Animal Welfare; Animals; Behavior, Animal; Chickens / physiology; Feathers / injuries; Female; Housing, Animal; Molting / physiology; Oviposition / physiology; Population Density; Random Allocation
topics (OpenAlex): Animal Nutrition and Physiology; Animal Behavior and Welfare Studies; Insect and Pesticide Research
TL;DR: Behaviors were affected by strain, density, bird age, and molting; however, the patterns and number of aggressive acts did not increase to compromise the welfare status of the hens. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 article

Maternal Dietary Iodide Influences Turkey Embryo Thyroid Function

(2004, August 15). International Journal of Poultry Science.

Vern Christensen; Gary Davis

topics (OpenAlex): Mercury impact and mitigation studies; Thyroid Disorders and Treatments; Chemical Analysis and Environmental Impact
TL;DR: The data indicate that the embryonic thyroid function during hatching is dependent upon the maternal thyroid in turkey dams, even though the embryo develops outside the maternal body. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

2004 article

The Effects of Different Beak Trimming Techniques on Plasma Corticosterone and Performance Criteria in Single Comb White Leghorn Hens

Davis, G. S., Anderson, K. E., & Jones, D. R. (2004, October 1). Poultry Science, Vol. 83, pp. 1624–1628.

By: G. Davis n, K. Anderson n  & D. Jones*

author keywords: beak trim; corticosterone; production criteria
MeSH headings : Animal Husbandry; Animals; Beak / surgery; Behavior, Animal; Body Weight / physiology; Chickens / physiology; Corticosterone / blood; Fear / physiology; Feathers; Feeding Behavior / physiology; Female; Leukocytes / physiology; Radioimmunoassay; Survival / physiology
topics (OpenAlex): Animal Nutrition and Physiology; Insect and Pesticide Research; Animal Behavior and Welfare Studies
TL;DR: It was concluded that pullets and hens could adapt to the physiological stress of beak trimming and out perform, during a lay phase, controls whose beaks were not trimmed. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
1. No Poverty (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2003 article

Accelerating embryonic growth during incubation following prolonged egg storage. 1. Embryonic livability

Christensen, V. L., Grimes, J. L., Wineland, M. J., & Davis, G. S. (2003, December 1). Poultry Science.

By: V. Christensen n, J. Grimes n, M. Wineland n & G. Davis n

author keywords: egg storage; embryonic growth; hatchability; incubation
MeSH headings : Animals; Embryo, Nonmammalian / physiology; Embryonic Development; Incubators / veterinary; Quality Control; Temperature; Time Factors; Turkeys / embryology
topics (OpenAlex): Animal Genetics and Reproduction; Reproductive Biology and Fertility; Sperm and Testicular Function
TL;DR: It was concluded that delayed growth and depressed metabolism of fertilized turkey eggs stored for 15 d can be compensated for by exposure to higher incubation temperatures for the initial 1 or 2 wk of incubation. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2003 article

Accelerating embryonic growth during incubation following prolonged egg storage. 2. Embryonic growth and metabolism

Christensen, V. L., Grimes, J. L., Wineland, M. J., & Davis, G. S. (2003, December 1). Poultry Science.

By: V. Christensen n, J. Grimes n, M. Wineland n & G. Davis n

MeSH headings : Animals; Blood Glucose / analysis; Creatine Kinase / blood; Embryo, Nonmammalian / metabolism; Embryonic Development; Energy Metabolism; Glucose / analysis; Glycogen / analysis; Heart / embryology; Incubators / veterinary; L-Lactate Dehydrogenase / blood; Lactic Acid / analysis; Liver / chemistry; Liver / embryology; Muscle, Skeletal / chemistry; Muscle, Skeletal / embryology; Temperature; Thyroxine / blood; Time Factors; Triiodothyronine / blood; Turkeys / embryology
topics (OpenAlex): Animal Nutrition and Physiology; Aquaculture Nutrition and Growth; Reproductive biology and impacts on aquatic species
TL;DR: It was concluded that a possible mechanism for the improved livability of faster growing embryos observed after prolonged egg storage might be due to better utilization of carbohydrate. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2002 article

Environmental Incubation Factors Influence Embryonic Thyroid Hormones

Christensen, V. L., Davis, G. S., & Nestor, K. E. (2002, April 1). Poultry Science.

By: V. Christensen n, G. Davis n & K. Nestor*

author keywords: turkey embryo; thyroid; developmental; metabolic
MeSH headings : Animal Feed; Animals; Embryo, Nonmammalian / embryology; Embryo, Nonmammalian / metabolism; Female; Iodides / administration & dosage; Iodides / metabolism; Radioimmunoassay / veterinary; Survival Analysis; Temperature; Thyroid Gland / drug effects; Thyroid Gland / embryology; Thyroid Gland / metabolism; Thyroxine / blood; Triiodothyronine / blood; Turkeys / blood; Turkeys / embryology; Turkeys / genetics; Turkeys / metabolism
topics (OpenAlex): Animal Nutrition and Physiology; Aquaculture Nutrition and Growth; Comparative Animal Anatomy Studies
TL;DR: It was concluded that environmental factors can affect circulating thyroid hormone levels in turkey embryos, thus affecting metabolic functions, and the possibility exists to manipulate these circulating levels using environmental incubation conditions to improve hatchability. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2002 article

The effects of feeding the direct-fed microbial, primalac, on growth parameters and egg production in single comb white leghorn hens

Davis, G. S., & Anderson, K. E. (2002, June 1). Poultry Science, Vol. 81, pp. 755–759.

By: G. Davis n & K. Anderson n 

author keywords: direct-fed microbial; extra large eggs; feed cost; net income
MeSH headings : Animal Feed / economics; Animal Husbandry / economics; Animals; Body Constitution; Chickens / physiology; Costs and Cost Analysis; Eggs; Female; Growth; Housing, Animal; Reproduction
topics (OpenAlex): Animal Nutrition and Physiology; Livestock and Poultry Management
TL;DR: It was concluded that PrimaLac can improve egg size and lower feed costs, regardless of the bird density used in the present study. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2001 article

Maternal Dietary Iodide Influences Turkey Embryonic Thyroid Function

Christensen, V. L., & Davis, G. S. (2001, September 1). Poultry Science.

By: V. Christensen n & G. Davis n

MeSH headings : Animal Feed; Animals; Embryonic Development; Female; Iodides / administration & dosage; Survival Analysis; Thyroid Gland / drug effects; Thyroid Gland / embryology; Thyroid Gland / physiology; Thyroxine / blood; Triiodothyronine / blood; Turkeys / embryology; Turkeys / physiology
topics (OpenAlex): Thyroid Disorders and Treatments; Animal Nutrition and Physiology; Aquaculture Nutrition and Growth
TL;DR: The data indicate that the embryonic thyroid function during hatching is dependent upon the maternal thyroid in turkey dams, even though the embryo develops outside the maternal body. (via Semantic Scholar)
Source: NC State University Libraries
Added: August 6, 2018

2001 article

The Effects of Genetic Selection on Production Parameters of Single Comb White Leghorn Hens

Jones, D. R., Anderson, K. E., & Davis, G. S. (2001, August 1). Poultry Science, Vol. 80, pp. 1139–1143.

By: D. Jones  n, K. Anderson n  & G. Davis n

author keywords: genetic selection; egg production
MeSH headings : Animals; Body Weight / genetics; Body Weight / physiology; Chickens / genetics; Chickens / physiology; Eggs / standards; Energy Intake; Female; Housing, Animal; Oviposition / genetics; Selection, Genetic
topics (OpenAlex): Animal Nutrition and Physiology; Genetic and phenotypic traits in livestock; Meat and Animal Product Quality
TL;DR: It is concluded that genetic selection has improved production parameters in commercial layers as determined by measurements in this study. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2000 article

The effects of long-term caging and molt of Single Comb White Leghorn hens on heterophil to lymphocyte ratios, corticosterone and thyroid hormones

Davis, G. S., Anderson, K. E., & Carroll, A. S. (2000, April 1). Poultry Science, Vol. 79, pp. 514–518.

By: G. Davis n, K. Anderson n  & A. Carroll n

author keywords: egg production; corticosterone; heterophil to lymphocyte ratio; thyroid hormones; molt
MeSH headings : Aging; Animals; Chickens / physiology; Corticosterone / blood; Female; Housing, Animal; Leukocyte Count; Lymphocyte Count; Molting; Oviposition; Thyroid Hormones / blood; Thyroxine / blood; Triiodothyronine / blood
topics (OpenAlex): Animal Nutrition and Physiology; Livestock and Poultry Management; Animal Behavior and Welfare Studies
TL;DR: The physiological and metabolic parameters of the different hen strains and cage densities were similar during egg production, however, CS, T3, T4, and H:L changed with age in relation to the egg production cycle, and these parameters were affected by bird age. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

1994 journal article

Mycotoxins and Feed Refusal by Pekin Ducks

Journal of Applied Poultry Research, 3(2), 190–192.

By: G. Davis n, K. Anderson n , C. Parkhurst n, D. Rives n & W. Hagler n

topics (OpenAlex): Microbial infections and disease research; Coccidia and coccidiosis research; Mycotoxins in Agriculture and Food
TL;DR: Pathological analysis indicated that the ducklings were dehydrated with no feed in the gastrointestinal tract, and a necropsy diagnosis indicated a condition similar to starve-outs and feed refusal. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: NC State University Libraries, Crossref, NC State University Libraries
Added: August 6, 2018

1993 journal article

Light intensity and sex ratio effects on egg production, egg quality characteristics, and fertility in breeder pekin ducks

Poultry Science, 72(1), 23–29.

By: G. Davis n, C. Parkhurst n & J. Brake n

author keywords: PEKIN DUCKLING; EGG PRODUCTION; LIGHT INTENSITY; SEX RATIO; HIGH-PRESSURE SODIUM LIGHT
topics (OpenAlex): Animal Nutrition and Physiology; Aquaculture Nutrition and Growth; Avian ecology and behavior
TL;DR: It was concluded that H PS light of 172 lx can enhance egg production in breeder Pekin ducklings prior to peak production (37 wk), and HPS light can improve fertility following the peak egg production period. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

1991 article

Computer-Aided Heat Acclimation in Broiler Cockerels ,

DAVIS, G. S., EDENS, F. W., PARKHURST, C. R., & BAUGHMAN, G. R. (1991, February 1). Poultry Science.

By: G. Davis*, F. Edens, C. Parkhurst & G. Baughman n

author keywords: HEAT; STRESS; BROILER; COCKEREL; ACCLIMATION
topics (OpenAlex): Animal Nutrition and Physiology; Greenhouse Technology and Climate Control; Effects of Environmental Stressors on Livestock
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1985 article

The Effect of Light Duration on Turkey Poult Performance and Adrenal Function

DAVIS, G. S., & SIOPES, T. D. (1985, May 1). Poultry Science.

By: G. Davis n & T. Siopes n

MeSH headings : Adrenal Cortex / physiology; Adrenal Glands / anatomy & histology; Animals; Body Weight; Corticosterone / blood; Eating; Lighting; Male; Mortality; Organ Size; Turkeys / physiology
topics (OpenAlex): Animal Nutrition and Physiology; Meat and Animal Product Quality; Animal Behavior and Welfare Studies
TL;DR: Day lengths utilized in this study had no consistent effect on poult-performance parameters except from 0 to 2 weeks of age, when compared to hormone levels at 4, 6, and 8 weeks, and Adrenal function was also not consistently affected by day length. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

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